Currently, in addition to management of the underlying disease, treatment options for EDAC / TBM are limited. Surgical tracheoplasty can be offered but can be associated with severe post-operative complications. Airway stenting can also be offered but, even if this treatment improved quality of life, it fails to improve exercise capacity. Airway stenting is also associated with infectious complications as well as stent migrations. Other endoscopic treatment such as Yttrium Aluminium Perovskite laser can be offered with good results but have not yet been validated in a randomised trial. Nocturnal non-invasive ventilation (NIV) can also be used, especially in patients with associated obstructive sleep apnoeas but again there is not randomised clinical trial evidence that validates this approach in adults. Expiratory Positive Airway Pressure (EPAP) provides a pneumatic stenting that prevents the expiratory collapse of the airway. But, by giving the NIV during the night, patients are left without any support during the day whilst their respiratory demand is higher and when they are more symptomatic. Currently, NIV is only given at night or at rest because current non-invasive ventilators are not suitable for ambulatory use as they are heavy. Recently, a new portable ventilator with built-in battery has been issued (Z1®, Breas®). This ventilator is light (500g) portable and has a working duration of 8 hours. Therefore, it can be easily carried and used while walking. By providing a nasal pillow interface (Nasal swift®, Resmed®) to patients, it will allow them to walk safely with the device on.